Royal Society of Chemistry

Synthesis of rhodamine-labelled dieckol: its unique intracellular localization and potent anti-inflammatory activity

Chem. Commun. - 5 October, 2014 - 09:54

Chem. Commun., 2014, 50,13045-13048
DOI: 10.1039/C4CC04270K, CommunicationJong Hwan Kwak, Yanxia He, Byungkwon Yoon, Seyoung Koo, Zhigang Yang, Eun Ju Kang, Bong Ho Lee, Seung-Yun Han, Yung Choon Yoo, Kyung Bok Lee, Jong Seung Kim
Rhodamine-labelled dieckol localized in the ER of RAW cells. Anti-inflammatory activity of the compound was greater than that of dieckol.
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The photo-thermal plasmonic effect in spin crossover@silica-gold nanocomposites

Chem. Commun. - 5 October, 2014 - 09:54

Chem. Commun., 2014, 50,13015-13018
DOI: 10.1039/C4CC02652G, CommunicationIurii Suleimanov, Jose Sanchez Costa, Gabor Molnar, Lionel Salmon, Azzedine Bousseksou
Nanocomposite spin crossover materials with gold nanoparticles were synthesized and plasmon-enhanced photothermal spin state switching was evidenced using Raman spectroscopy.
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Self-assembled DNA nanostructures prepared by rolling circle amplification for the delivery of siRNA conjugates

Chem. Commun. - 5 October, 2014 - 09:54

Chem. Commun., 2014, 50,13049-13051
DOI: 10.1039/C4CC03834G, CommunicationCheol Am Hong, Bora Jang, Eun Hye Jeong, Hansaem Jeong, Hyukjin Lee
Large-scale preparation of DNA nanostructures for siRNA delivery has been achieved by an isothermal enzymatic amplification process.
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Cobalt-catalyzed carboxylation of propargyl acetates with carbon dioxide

Chem. Commun. - 5 October, 2014 - 09:54

Chem. Commun., 2014, 50,13052-13055
DOI: 10.1039/C4CC03644A, CommunicationKeisuke Nogi, Tetsuaki Fujihara, Jun Terao, Yasushi Tsuji
The cobalt-catalyzed carboxylation of propargyl acetates proceeds with CO2 (1 atm) at room temperature in the presence of Mn powder as a reductant.
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A radical spin on viologen polymers: organic spin crossover materials in water

Chem. Commun. - 5 October, 2014 - 09:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC07119K, CommunicationMark J. Juetten, Alexander T. Buck, Arthur H. Winter
A polymer containing viologen radical cation monomer units is shown to reversibly switch between paramagnetic and diamagnetic states via non-covalent host-guest interactions or temperature control in water.
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A turn-on fluorogenic Zn(II) chemoprobe based on a terpyridine derivative with aggregation-induced emission (AIE) effects through nanofiber aggregation into spherical aggregates

Chem. Commun. - 5 October, 2014 - 09:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC05283H, CommunicationSung Ho Jung, Ki-Young Kwon, Jong Hwa Jung
The self-assembly of the terpyridine-based ligand exhibited strong emission in the presence of Zn2+ due to the formation of coordination bonds between the terpyridine moieties and the Zn2+ by the aggregation-induced emission effect.
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Chiral nematic mesoporous films of ZrO2:Eu3+: new luminescent materials

Dalton Transactions - 4 October, 2014 - 15:54

Dalton Trans., 2014, 43,15321-15327
DOI: 10.1039/C4DT00662C, PaperGuang Chu, Jing Feng, Yu Wang, Xiao Zhang, Yan Xu, Hongjie Zhang
Free-standing chiral nematic mesoporous films of ZrO2:Eu3+ exhibit tunable optical properties and selective suppression of the spontaneous emission of Eu3+.
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A heterotrimetallic Ir(III), Au(III) and Pt(II) complex incorporating cyclometallating bi- and tridentate ligands: simultaneous emission from different luminescent metal centres leads to broad-band light emission

Dalton Transactions - 2 October, 2014 - 15:17
Dalton Trans., 2014, Accepted Manuscript
DOI: 10.1039/C4DT02761B, PaperDiego J Cardenas, Elena Bunuel, Rebeca Munoz-Rodriguez, Noelia Fuentes, J A Gareth Williams
Di- and tri-nuclear metal complexes incorporating gold(III), iridium(III) and platinum(II) units linked via a 1,3,5-triethynylbenzene core are reported, together with the corresponding mononuclear complexes as models. The gold(III) and platinum(II)...
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Can the pentamethylcyclopentadienyl ligand act as a proton-relay in f-element chemistry? Insights from a joint experimental/theoretical study.

Dalton Transactions - 2 October, 2014 - 15:17
Dalton Trans., 2014, Accepted Manuscript
DOI: 10.1039/C4DT02387K, PaperChristos E. Kefalidis, Lionel Perrin, Carol Burns, David Berg, Laurent Maron, R Andersen
Isomerisation of buta-1,2-diene to but-2-yne by (Me5C5)2Yb is a thermodynamically favourable reaction, with the [capital Delta]rG[degree] estimated from experimental data at 298 K to be -3.0 kcal mol-1. It proceeds in...
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Synthesis of 3-benzylisoquinolines by domino imination/cycloisomerisation of 2-propargylbenzaldehydes

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,8019-8030
DOI: 10.1039/C4OB01583E, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Monica Dell'Acqua, Valentina Pirovano, Giorgio Confalonieri, Antonio Arcadi, Elisabetta Rossi, Giorgio Abbiati
A modular entry to 2-propargylbenzaldehydes and their use in [small mu ]W-promoted cascade reaction with ammonium acetate for the synthesis of 3-benzylisoquinolines.
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Asymmetric synthesis of (3S,1[prime or minute]S)-3-(1-amino-2,2,2-trifluoroethyl)-1-(alkyl)-indolin-2-one derivatives by addition of (S)-N-t-butylsulfinyl-3,3,3-trifluoroacetaldimine to 1-(alkyl)-indolin-2-ones

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7909-7913
DOI: 10.1039/C4OB01453G, CommunicationPing Qian, Chen Xie, Lingmin Wu, Haibo Mei, Vadim A. Soloshonok, Jianlin Han, Yi Pan
This paper for the first time presents the addition reactions between amide-derived nucleophiles and CF3-containing N-sulfinyl-imines, with synthetically useful diastereoselectivity and chemical yields.
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Anion effects to deliver enhanced iridium catalysts for hydrogen isotope exchange processes

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7927-7931
DOI: 10.1039/C4OB01570C, CommunicationAlan R. Kennedy, William J. Kerr, Rory Moir, Marc Reid
Enhanced catalyst efficiency and solvent applicability has been achieved for hydrogen isotope exchange processes with Ir(I) complexes possessing larger, more weakly coordinating counterions.
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Synthesis and photophysical properties of pyrene-based green fluorescent dyes: butterfly-shaped architectures

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7914-7918
DOI: 10.1039/C4OB01509F, CommunicationDevendar Goud Vanga, Mithun Santra, Ashok Keerthi, Suresh Valiyaveettil
A few pyrene-based fluorescent compounds were synthesized using Pd/Cu-catalyzed cross-coupling reaction.
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Synthesis of phenanthridine derivatives via cascade annulation of diaryliodonium salts and nitriles

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7904-7908
DOI: 10.1039/C4OB01504E, CommunicationJian Li, Hongni Wang, Jiangtao Sun, Yang Yang, Li Liu
A cascade coupling reaction of diaryliodonium salts and nitriles via copper-catalysis toward phenanthridine derivatives has been developed.
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Estimating the shape and size of supramolecular assemblies by variable temperature diffusion ordered spectroscopy

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7932-7936
DOI: 10.1039/C4OB01373E, CommunicationBenjamin M. Schulze, Davita L. Watkins, Jing Zhang, Ion Ghiviriga, Ronald K. Castellano
Reported is characterization of the self-assembly of [small pi]-conjugated oligomers, molecules studied recently in photovoltaic devices, using variable temperature diffusion ordered spectroscopy; the approach has allowed estimation of assembly size, shape, and molecularity.
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Catalytic asymmetric synthesis of the pentacyclic core of (-)-nakadomarin A via oxazolidine as an iminium cation equivalent

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7919-7922
DOI: 10.1039/C4OB01678E, CommunicationNobuya Tsuji, Michael Stadler, Naoya Kazumi, Tsubasa Inokuma, Yusuke Kobayashi, Yoshiji Takemoto
A catalytic asymmetric synthesis of the pentacyclic core of (-)-nakadomarin A was achieved.
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Synthesis of meta and para-substituted aromatic sulfonate derivatives of polydentate phenylazaphosphinate ligands: enhancement of the water solubility of emissive europium(III) EuroTracker[registered sign] dyes

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,8061-8071
DOI: 10.1039/C4OB01143K, PaperMartina Delbianco, Laurent Lamarque, David Parker
The use of a trifluoroethyl ester group to protect sulfonic acid moieties is used in the synthesis of a short series of water-soluble, very bright europium(III) complexes.
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Zinc mediated activation of terminal alkynes: stereoselective synthesis of alkynyl glycosides

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7900-7903
DOI: 10.1039/C4OB01405G, CommunicationMadhu Babu Tatina, Anil Kumar Kusunuru, Syed Khalid Yousuf, Debaraj Mukherjee
Zinc mediated alkynylation reaction was studied for the preparation of C-glycosides from unactivated aromatic and aliphatic acetylenes. Different glycosyl donors such as glycals and anomeric acetates were tested towards in situ generated alkynyl zinc reagent using zinc dust and ethyl bromoacetate. The method provides a simple, mild and stereoselective access of alkynyl glycosides.
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Conformational effects due to stereochemistry and C3-substituents in xylopyranoside derivatives as studied by NMR spectroscopy

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,8031-8035
DOI: 10.1039/C4OB01422G, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Jerk Ronnols, Sophie Manner, Ulf Ellervik, Goran Widmalm
Dynamic NMR spectroscopy revealed an unequally populated equilibrium at low temperature for a 3-deoxygenated compound.
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The importance of chain conformational mobility during 5-exo-cyclizations of C-, N- and O-centred radicals

Org. and Biomol. Chem. - 2 October, 2014 - 03:54

Org. Biomol. Chem., 2014, 12,7983-7992
DOI: 10.1039/C4OB01419G, PaperJohn C. Walton
The access angle of a radical centre to an alkene acceptor was found to be a key parameter that pinpointed difficult chain reorganizations as responsible for the slow 5-exo cyclizations of N-centred radicals.
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